Trip-hammer.



A. VINCENT.

TRIP HAMMER.

APPLICATION FILED JAN-31. I917.

Patented Mar. 18, 1919.

2 SHEETSSHEET I.

lA/VE/VTOR A niDn i0 i'rwani WITNESSES.

A TTOR/VEV A. VINCENT.

TRIP HAMMER.

APPLICATION FILED JAN.3I. I917 w h 47 5 7 6 J 5 j Z wj M J 5 0a in! \III, a 7 5 J l w I. I .1 im-i Eggm n .vaq w 7 F m mm :m$ .EE-W .u 7 n v7 7 m I f] Z; w ma; 2f a V 9 y B 5 y W/ TNESSES:

ATTORNEY ANTONIO VINCENT, or OAKLAND, CALIFORNIA.

TRIP-HAMME a.

To all whom; it may concern:

Be it known that I, ANTONIO VINCENT, citizen of the United States, residing at Oakland, in the county of -Alameda and State of California, have invented certain new and useful Improvements in Trip- Hammers, of which the following is a specification.

This invention is a machine for beating out gold to form gold leaf. 2

The object of the invention is to provide a device by which a uniform thickness of leaf is produced within a minimum time and the leaf protected from contamination during the beating out process.

My invention comprises a gold leaf beatingmachine which overcomes the objections of the old gold leaf hand beating process.

The invention is illustrated in the accompanying drawing which forms a part of this specification and the appended claims.

Referring to the drawings:

Figure 1 is a side elevation of the machine.

Fig. 2 is a transverse section thereof -on line 22 of Fig. 1.

Fig. 3 is a; plan view of a portion of the machine. I

Numeral l-indicates-a frame on which are bearings 2 in which bearings a shaft 3 is journaled. On one end of said shaft is mounted a pulley 4 and on the other end of said shaft is mounted a fly wheel 5. Mounted on the shaft 3 between the bearings 2 are a pair of cams 6. A bracket 7 is secured to the frame 1 between the cams 6, to the upper end of which bracket a rod 8 is pivoted by means of pivot 9. Numeral 10 indicates an actuator consisting of ayoke havingside members 11 and 12 joined by lower cross member 13 and on which side members a cross head 14 is slidably mounted. The rod 8 extends through the cross member 13 and cross head 14 and the lower end of the yoke is reciprocatively mounted on said rod. A

collar 15 is secured to the rod 8 near its lower end which engages the cross member 13 to limit the downward movement of the oke and a nut 16 screws on the upper threaded end of said rod against cross head 14 to confine a compression spring surrounding the rod 8 with its ends engaging the cross member 13 and cross head 14 respectively. By turning the nut 16 the cross head 14 may be moved along the side mem- Speeification of Letters Patent.

Patented Mar. 18, 1919.

Application filed January 31, 1917. Serial No. 145,744.

bers 11 and 12 to adjust the tension of the spring 20.

The upper ends of yoke side members 11 and 12 are pivoted by pivots 21 to yokes 23 and 24, which yokes are fulcrumed on bolt 25 extending through bracket 26 on top of the frame 1, the head 27 of the bolt engaging one upstanding member 28'and a nut 29 screwing on the other end of the bolt against the other upstanding member of the bracket and holding the bolt in the bracket.

Numeral 30 indicates a gold beating hammer, which comprises a head 31 and a lever arm 32 Which is fulcrumed between yokes 23 and 24 on bolt 25. The lever arm 32 comprises two members 33 and 34; the member 33 being of metal and fulcrumed on the bolt 25, and the member 34 being of wood coupled by coupling 35 to member 33 and carrying on its outer end the hammer head 31. The coupling 35 comprises a notch 36 in the outer end of lever member 33 and a tongue 37 on the inner end of lever member 34 fitting in said notch, and bolts 38 extending through the outer end of the lever member 33 and the tongue 37, and thereby securely coupling the lever members together. The lever member 34 carrying the hammer head 31 is made of wood or other material rather than metal so that no material such as rust which accumulates on metal will fall from the hammer lever into the gold beneath the hammer head.

Arms 40 and 41 extend from the sides of the hammer lever member 33 between the lower and upper arms 42 and 43 of yoke 23 and between the lower and upper arms 44 and 45 of yoke 24 respectively. Bods 46 and 47 respectively extend through hammer lever arm 40 and 41 and through yoke arms 42 and 43 and yoke arms 44 and 45 through yoke tie bars 43 and 49, which rest against and connect the yoke arms 42 and 44 and the yoke arms 43 and 45 respectively, which give rigidity to the yoke connections. Cupshaped collars 50, 51, 52 and 53 surround the rod 46, the collars 51 and 52 resting against the lower and upper sides of the'arm 40, and springs 54 and 55 surround said rod with their ends respectively engaging and resting in collars 50 and 51 and collars 52 and 53. Cup-shaped collars 60, 61, 62 and 63 surround the rod 47, the collars 61 and 62 resting against the lower and upper sides of the arm 41, and springs 64 and 65 surround said rod with their ends respectively engaging and resting in collars 60 and 61 and collars 62 and 63. The rod a6 is connected to the arms 42 and 43 by nuts and 71 which engage the tie bars 48 and 4:9 and by nuts 72 and 73 which engage the inner sides of the yoke arms 42 and as respectively. Nuts 74 and 75 screw on the rod 46 against collars 50 and 53 for adjusting and controlling the tension of springs 54-. and 55. The rod s7 is connected to the arms a4 and 45 by nuts 76 and 77, which engage the tie bars a8 and a9, and by nuts 78 and 79, which engage the inner sides of the yoke arms as and 45 respectively. Nuts 80 and 81 screw on the rod l against collars 60 and 63 for adjusting and controlling the tension of springs 6i and 65. An anvil 9O rests directly under the hammer head 31 on which the gold which is beaten is placed.

The operation of the invention is as follows:

The gold to be beaten is placed within the leaves of a parchment and the parchment and the gold therein are placed upon the anvil 90, as shown in Fig. 1. Power is applied to pulley a and the shaft 3 and cams 6 rotated in a counterclockwise direction. During each revolution of the shaft and cams, the cams engage the yoke cross member 13 and lift yoke 10 against the tension of spring 20, which swings yokes 23 and 24 upwardly on their fulcrum 25, and the yokes 23 and 2%, through their spring connections with hammer lever 32, swing the hammer 30 upwardly on its fulcrum, until the cams escape the yoke cross arm, whereupon the yoke 10 slides down on rod 8 by gravity and under the influence of spring 20, and the yokes 23 and 24 and hammer 30 swing down on fulcrum 25 by gravity and also under the influence of spring 20, and the hammer head 31 strikes the parchment on the anvil and reduces the thickness of the gold in the parchment.

The springs, 54, 55, 64. and 65 and spring 20 absorb the shocks of the hammer due to the impact of the hammer or the vibration of the machine which causes the hammer to strike the parchment with uniform blows of the desired power whereby the gold in the parchment is beaten uniformly and evenly until reduced to a leaf.

Having described my invention, I claim as new and desire to secure by Letters Patent:

1. A gold beating machine comprising an anvil, a shaft, actuator members one of which is slidably mounted upon the other, means carried by the shaft for actuating said slidable member, a pivoted hammer mounted to cooperate with said anvil, and operative connections between said hammer and said slidable member.

2. A gold beating machine comprising an anvil, a shaft, actuator members one of which is pivoted to the frame, a second member slidably mounted on the pivoted member, means car ied by the shaft for actuating said slidable member, a pivoted hammer mounted to cooperate with said anvil, and operative connections between said hammer and said slidable member.

3. A gold beating machine comprising an anvil, a frame, a rod pivoted to said frame, a yoke slidably engaging said rod, means carried by the shaft for reciprocating said yoke, and a pivoted hammer connected with said yoke and mounted to cooperate with said anvil.

s. A gold beating machine comprising a frame, an anvil, a shaft, a relatively stationary actuator part, a relatively movable actuator part engaging the same, means carried by the shaft for imparting move ment to the movable actuator part, yokes pivotally supported in said frame and connected with said movable part, a pivotally mounted hammer extending between said yokes, and means carried by the yokes for cushioning the stroke of the hammer.

5. A gold beating machine comprising a frame, an anvil, a shaft, a relatively stationary actuator part, a relatively movable actuator part engaging the same, means carried by the shaft for imparting movement to the movable actuator part, yokes pivotally supported in said frame and con nected with said movable part, a pivot-ally mounted hammer extending between said yokes, lateral arms extending from said hammer, and springs carried by the yokes and engaging said arms to cushion said hammer.

6. A gold beating machine comprising an anvil, a hammer pivotally mounted, a yoke pivotally mounted, a spring interposed between said hammer and said yoke, a sliding yoke connected at one end to said pivoted yoke, a bracket, a. rod connected to said bracket, a bearing on said sliding yoke through which said rod extends, a cross head slidable on said yoke to which said rod is connected, a spring interposed between said bearing and said cross head, a shaft suitably journaled, and a cam on said shaft for engaging said sliding yoke to swing said hammer to beat the gold on the anvil.

In testimony whereof I affix my signature.

ANTONIO VINCENT.

Bopies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, 3. 

